//package com.ruoyi.gateway.filter;
//
//import java.nio.CharBuffer;
//import java.nio.charset.StandardCharsets;
//import java.util.concurrent.atomic.AtomicReference;
//
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.cloud.gateway.filter.GatewayFilter;
//import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
//import org.springframework.core.io.buffer.DataBuffer;
//import org.springframework.core.io.buffer.DataBufferUtils;
//import org.springframework.http.server.reactive.ServerHttpRequest;
//import org.springframework.stereotype.Component;
//import com.alibaba.fastjson.JSONObject;
//import com.ruoyi.common.core.utils.ServletUtils;
//import com.ruoyi.common.core.utils.StringUtils;
//import com.ruoyi.gateway.config.properties.CaptchaProperties;
//import com.ruoyi.gateway.service.ValidateCodeService;
//import reactor.core.publisher.Flux;
//
///**
// * 验证码过滤器
// *
// * @author ruoyi
// */
//@Component
//public class ValidateCodeFilter extends AbstractGatewayFilterFactory<Object> {
//    private final static String[] VALIDATE_URL = new String[]{"/auth/login", "/auth/register"};
//
//    @Autowired
//    private ValidateCodeService validateCodeService;
//
//    @Autowired
//    private CaptchaProperties captchaProperties;
//
//    private static final String CODE = "code";
//
//    private static final String UUID = "uuid";
//
//    @Override
//    public GatewayFilter apply(Object config) {
//        return (exchange, chain) -> {
//            ServerHttpRequest request = exchange.getRequest();
//
//            // 非登录/注册请求或验证码关闭，不处理
//            if (!StringUtils.containsAnyIgnoreCase(request.getURI().getPath(), VALIDATE_URL) || !captchaProperties.getEnabled()) {
//                return chain.filter(exchange);
//            }
//
//            try {
//                String rspStr = resolveBodyFromRequest(request);
//                JSONObject obj = JSONObject.parseObject(rspStr);
//                validateCodeService.checkCaptcha(obj.getString(CODE), obj.getString(UUID));
//            } catch (Exception e) {
//                return ServletUtils.webFluxResponseWriter(exchange.getResponse(), e.getMessage());
//            }
//            return chain.filter(exchange);
//        };
//    }
//
//    private String resolveBodyFromRequest(ServerHttpRequest serverHttpRequest) {
//        // 获取请求体
//        Flux<DataBuffer> body = serverHttpRequest.getBody();
//        AtomicReference<String> bodyRef = new AtomicReference<>();
//        body.subscribe(buffer -> {
//            CharBuffer charBuffer = StandardCharsets.UTF_8.decode(buffer.asByteBuffer());
//            DataBufferUtils.release(buffer);
//            bodyRef.set(charBuffer.toString());
//        });
//        return bodyRef.get();
//    }
//}
